title: Eimeria and sarcocystis in raccoons in Illinois.
abstract: Eimeria nuttalli oocysts were found in 58% (21/36) and E. procyonis oocysts in 25% (9/36) of raccoons Procyon lotor in Illinois, and sporocysts of Sarcocystis sp. in 17% (2/12) of other raccoons in Illinois. The oocysts of E. nuttalli were ellipsoidal to ovoid, 15-21 X 12-17 micrometer, with a one-layered, smooth, colorless wall. The oocysts of E. procyonis were 22-28 X 18-22 micrometer, with a rough, striated, brownish, two-layered wall. The sporulated sporocysts of Sarcocystis sp. were 11-13 X 8-10 micrometer. Attempts to infect baby pigs by feeding them sporocysts of Sarcocystis sp. from the reaction failed.
mesh_terms: D000818:Animals; D004539:Eimeria / Q000254:growth & development / Q000302:isolation & purification*; D005243:Feces / Q000469:parasitology; D007087:Illinois; D011821:Raccoons / Q000469:parasitology*; D012522:Sarcocystis / Q000254:growth & development / Q000302:isolation & purification*; D013552:Swine / Q000469:parasitology